This is from the 1995 Rykodisc CD of Studio Tan. At first I thought “The Adventures of Greggery Peccary” was remixed, but upon closer listening, I think the mix is the same as the original that was re-issued on the 2012 Universal/Zappa CD, it just has different mastering with less bass EQ. I like aspects of the sound of both versions, though this Rykodisc version has 30 seconds of music edited out, which is not to be confused with the early fadeout on the original vinyl. The 2012 CD is uncut and has no early fadeout. The other Rykodisc tracks have different mastering too, but no edits.
Two tracks switch positions and there are slightly different titles.
Tracklist on Rykodisc CD
1. The Adventures of Greggery Peccary
2. Revised Music for Guitar & Low-Budget Orchestra
3. Lemme Take You to the Beach
4. RDNZL
Tracklist on Original Vinyl
1. Greggery Peccary
2. Let Me Take You to the Beach
3. Revised Music for Guitar & Low-Budget Orchestra
4. REDUNZL
The 2012 CD keeps the Rykodisc titles, but brings back the original track order.
source